a recent survey indicated that the mean time spent on a music streaming service is 210 minutes per week for the population of a certain country. a simulation was conducted to create a sampling distribution of the sample mean for a population with a mean of 210. the following histogram shows the results of the simulation.

Use the x-intercept method to find all real solutions of the equation. -9x^3-7x^2-96x+36=3x^3+x^2-3x+8

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297